树莓派 Raspberry Pi 4B TVS 瞬态抑制二极管击穿更换求助 - V2EX
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树莓派 Raspberry Pi 4B TVS 瞬态抑制二极管击穿更换求助

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  •   ZHUJIAKAI 100 天前 via iPhone 1015 次点击
    这是一个创建于 100 天前的主题,其中的信息可能已经有所发展或是发生改变。
    树莓派 Raspberry Pi 4B 被我插 DC12V 电源直接冒烟了,测量发现周围电容短路,刚开始以为电源管理芯片烧了,后来拆下 TVS 二极管测量测量阻值正常了,插电指示灯闪烁正常了,于是按照 tvs 二极管的丝印型号查了一下没找到一样的,我也不知道如何更换同型号的 TVS 瞬态抑制二极管,基于 TVS 瞬态抑制二极管特性高压导通,是不是可以选择 6V 的 TVS 二极管更换即可? https://imgur.com/a/0HIUFBG
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